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<?php |
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namespace LearnPress\Ajax\AI; |
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|
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use LearnPress\Ajax\AbstractAjax; |
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use LearnPress\AI\Assistant\AIAssistantController; |
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use LP_Debug; |
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use LP_Helper; |
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use LP_Request; |
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use LP_REST_Response; |
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use Exception; |
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use Throwable; |
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|
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/** |
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* Class AIAssistantAjax |
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* |
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* Handles student-facing AJAX requests for the LP AI Assistant. |
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* |
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* Intentionally separate from OpenAiAjax — every method in OpenAiAjax |
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* enforces ROLE_ADMINISTRATOR || ROLE_INSTRUCTOR. Mixing student-facing |
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* methods into the same class creates conflicting permission models. |
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* |
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* Transport: lp-load-ajax (same AbstractAjax mechanic as all other LP AJAX classes). |
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* |
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* @package LearnPress\Ajax\AI |
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* @since 4.3.5 |
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*/ |
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class AIAssistantAjax extends AbstractAjax { |
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|
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/** |
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* Handle assistant chat request from a logged-in learner. |
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* |
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* Nonce is verified by AbstractAjax::catch_lp_ajax() and is CSRF protection only — |
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* never authorization. Login is checked here; per-item authorization is the |
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* controller's job, via AIAssistantController::resolve_item_access(). |
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* |
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* Request data (JSON-encoded in 'data' param). A course item is addressed by the |
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* full tuple (course_id, item_type, item_id); all three are required. |
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* { |
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* "message": string, |
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* "course_id": int, |
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* "item_type": string, // lp_lesson | lp_quiz — validated against the curriculum |
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* "item_id": int, |
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* "history": [{role, content}, ...], |
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* "active_quiz_questions": {}, |
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* "action_hint": string |
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* } |
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* |
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* Response shape: |
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* { "status": "success", "message": "", "data": { "type": "text|quiz", "message": "...", "quiz": {} } } |
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*/ |
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public function openai_assistant_chat() { |
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$response = new LP_REST_Response(); |
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|
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try { |
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if ( ! is_user_logged_in() ) { |
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throw new Exception( __( 'You must be logged in to use the AI Assistant.', 'learnpress' ) ); |
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} |
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|
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if ( ! AIAssistantController::is_enabled() ) { |
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throw new Exception( __( 'AI Assistant is not available.', 'learnpress' ) ); |
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} |
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|
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$data_str = LP_Request::get_param( 'data' ); |
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$data = LP_Helper::json_decode( $data_str, true ); |
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|
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if ( ! is_array( $data ) ) { |
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throw new Exception( __( 'Invalid request data.', 'learnpress' ) ); |
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} |
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|
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$controller = new AIAssistantController(); |
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$result = $controller->handle_chat( $data ); |
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$result = $this->normalize_response_data( $result ); |
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|
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$response->status = 'success'; |
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$response->data = $result; |
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} catch ( Throwable $e ) { |
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$response->message = __( 'The AI Assistant is unavailable right now. Please try again later.', 'learnpress' ); |
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$response->data = $this->normalize_response_data( array() ); |
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} |
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|
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wp_send_json( $response ); |
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} |
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|
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/** |
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* Normalize controller result to required frontend contract. |
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* |
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* @param array $result |
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* |
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* @return array{type:string,message:string,quiz:array|null} |
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*/ |
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private function normalize_response_data( array $result ): array { |
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$type = $result['type'] ?? 'text'; |
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|
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if ( ! in_array( $type, array( 'text', 'quiz' ), true ) ) { |
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$type = 'text'; |
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} |
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|
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return array( |
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'type' => $type, |
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'message' => isset( $result['message'] ) ? (string) $result['message'] : '', |
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'quiz' => is_array( $result['quiz'] ?? null ) ? $result['quiz'] : null, |
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); |
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} |
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} |
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|
